*{margin:0;padding:0;list-style-type:none;}
a,img{border:0;}
body{font:12px/180% Arial, Helvetica, sans-serif, "新宋体";}

.demo{width:520px;margin:20px auto;}
.demo div{height:10px;}

#scan_click{ margin-top:32px; height:40px;}  
#scan_click a   
{  
      
  
    text-decoration:none;  
    background:#2f435e;  
    color:#f2f2f2;  
      
    padding: 10px 30px 10px 30px;  
    font-size:16px;  
    font-family: 微软雅黑,宋体,Arial,Helvetica,Verdana,sans-serif;  
    font-weight:bold;  
    border-radius:3px;  
      
    -webkit-transition:all linear 0.30s;  
    -moz-transition:all linear 0.30s;  
    transition:all linear 0.30s;  
      
    }  
   #sacn_click a:hover { background:#385f9e; }  